* {
    padding: 0;
    margin: 0;
    line-height: 26px;
    font-size: 19px;
}

body {
    padding: 10px;
}

a {
    color: blue;
}

hr {
    margin: 10px 0;
}

ul {
    overflow: hidden;
}

.return_index a {
    padding: 5px 0;
    font-weight: bolder;
    color: cadetblue;
}

body, button, input, select, textarea, h1, h2, h3, h4, h5, h6 {
    font-family: Tahoma, Helvetica, Arial, "\5b8b\4f53", '宋体', sans-serif;
}